UA 949 then QF 3774 at San Francisco
London → San Francisco → Los Angeles
Timetable, San Francisco time
16:55UA 949 from London at the gatealso LX 3048, AC 5082, OS 7855, SN 9101, LH 9378, NZ 9855
15:38QF 3774 to Los Angeles leaves the gate
22 h 43 apart on the timetable, overnight
QF 3774 leaves 22 h 43 after UA 949 arrives on the timetable: more than half a day, so not a connection we count.